Bulletin of Environmental Contamination and Toxicology最新文献

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Leachability Characteristic of Heavy Metals and Associated Health Risk Study in Typical tin Mine Tailings. 典型锡矿尾矿重金属浸出特性及健康风险研究
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-26 DOI: 10.1007/s00128-025-04043-8
Shouyue Chen, Zhongzhen Wang, Di Zhang, Zhaohui He, Yong Luo, Ruida Li, Haifan Cheng, Yang Liu, Ying Zhang
{"title":"Leachability Characteristic of Heavy Metals and Associated Health Risk Study in Typical tin Mine Tailings.","authors":"Shouyue Chen, Zhongzhen Wang, Di Zhang, Zhaohui He, Yong Luo, Ruida Li, Haifan Cheng, Yang Liu, Ying Zhang","doi":"10.1007/s00128-025-04043-8","DOIUrl":"10.1007/s00128-025-04043-8","url":null,"abstract":"<p><p>In this study, the leachability characteristics of heavy metals (Pb, Cu, Ni, As, and Cd) in tailing-contaminated soils were analyzed to assess contamination levels and health risks. The distribution and sources of heavy metals were also examined. Our findings revealed that, although currently the exposed tailings themselves posed minimal risk of leaching, the soils in the mine vicinity were significantly contaminated with Pb, Cu, As, and Cd as the result of nearly 100 years of mining history. With increasing soil depth (0-4, 4-6, 6-10 m), the concentrations of these heavy metals (excluding Ni) exhibited an initial rise followed by a sharp decline. Furthermore, APCS-MLR (absolute principal component score-multiple linear regression) model indicated that Cd, Pb, Cu, and As were primarily influenced by mining activities, whereas Ni was predominantly determined by the soil parent material. Health risk assessments highlighted that As was a major contributor to carcinogenic and non-carcinogenic risks, and children were at higher risk than adults.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 5","pages":"69"},"PeriodicalIF":2.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unveiling Microplastics in Commercial Brackish Water Fishes from the Lower Meghna River Estuary of Bangladesh. 揭示来自孟加拉国下梅克纳河河口的商业咸淡水鱼类中的微塑料。
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-26 DOI: 10.1007/s00128-025-04048-3
Razat Suvra Das, S M Mahatab Uddin, Sedat Gündoğdu, Jannatul Kubra Afrin, Nusrat Jahan, Md Rubaet Bin Abedin, Showmitra Chowdhury, Sultan Al Nahian, M Golam Mustafa, Mohammad Abdul Momin Siddique
{"title":"Unveiling Microplastics in Commercial Brackish Water Fishes from the Lower Meghna River Estuary of Bangladesh.","authors":"Razat Suvra Das, S M Mahatab Uddin, Sedat Gündoğdu, Jannatul Kubra Afrin, Nusrat Jahan, Md Rubaet Bin Abedin, Showmitra Chowdhury, Sultan Al Nahian, M Golam Mustafa, Mohammad Abdul Momin Siddique","doi":"10.1007/s00128-025-04048-3","DOIUrl":"10.1007/s00128-025-04048-3","url":null,"abstract":"<p><p>Microplastics (MPs) pose a persistent global threat and have entered almost every component of the ecosystem and seafood items. This study aimed to identify and characterize MPs in three widely edible fishes in the lower Meghna River estuary of Bangladesh and assess the polymer hazard index. Gastrointestinal tracts (GIT) of fish were collected and digested with KOH to extract MPs, and the polymer was confirmed by FTIR analysis. The species with the highest mean MP abundance was M. gulio (22.89 ± 8.91 MPs/GIT), followed by P. paradiseus (10.78 ± 4.29) and O. pama (15.11 ± 3.55). Fibers were predominant MPs, comprising 73.20-91.75% of the total particles. Blue, red, and black were the dominant colors of MPs, while 81.07-93.81% particles were between 500 and 1000 μm. Five distinct polymers, polypropylene, polyethylene, polyethylene terephthalate, Polystyrene, and Nylon 6, were detected in the GIT of these fishes. The study unveiled a significant correlation (r<sup>2</sup> = 0.223, p = 0.013) between MP incidence and the total length of fish. The polymer hazard index of the selected fishes showed the risk category IV (Danger), which is alarming. A risk category IV indicates that exposure to polymer, directly or indirectly through the food chain, may result in severe health consequences for humans as well as wildlife. With these detailed insights into MPs in most consumable fishes, the study highlights the comprehensive risks posed by MPs that could be useful for strategies to mitigate this environmental challenge.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 5","pages":"68"},"PeriodicalIF":2.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12031850/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From High-Tech To High-Risk? Unveiling the Acute Ecotoxicological Effects of Rare Earth Elements on Daphnia magna. 从高科技到高风险?揭示稀土元素对大水蚤的急性生态毒理学效应。
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-26 DOI: 10.1007/s00128-025-04044-7
Ivo Pinto, Bruno Henriques, Thainara Viana, Rosa Freitas, Eduarda Pereira, Sara C Antunes
{"title":"From High-Tech To High-Risk? Unveiling the Acute Ecotoxicological Effects of Rare Earth Elements on Daphnia magna.","authors":"Ivo Pinto, Bruno Henriques, Thainara Viana, Rosa Freitas, Eduarda Pereira, Sara C Antunes","doi":"10.1007/s00128-025-04044-7","DOIUrl":"10.1007/s00128-025-04044-7","url":null,"abstract":"<p><p>Technological advancement has brought significant environmental challenges, as its associated waste is difficult to manage and its long-term effects on ecosystems and biota remains uncertain. This study aimed to evaluate the acute toxicity of rare earth elements (REEs): lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, and yttrium on the standard aquatic species Daphnia magna through a toxicity screening approach. Based on EC<sub>50</sub> values, the most toxic element was yttrium (EC<sub>50</sub> = 7.2 mg L<sup>-1</sup>), followed by scandium, dysprosium, europium, lutetium, neodymium, holmium, gadolinium, ytterbium, thulium, terbium, samarium, cerium, and lanthanum (10 > EC<sub>50</sub> < 100) identified as harmful, and praseodymium classified as non-toxic with an EC<sub>50</sub> above 100 mg L<sup>-1</sup> (130.81 mg L<sup>-1</sup>). This study demonstrates that all REEs, except praseodymium, induce acute effects in D. magna using ASTM as a culture medium. The results also highlight the need for standardized screening studies to obtain reliable data for both predictive and retrospective environmental risk features.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 5","pages":"67"},"PeriodicalIF":2.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12031893/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-Year Hydrocarbon Variations in Sediments of the Ring of Cenotes, Yucatan, Mexico. 墨西哥尤卡坦半岛天然井环沉积物中两年的碳氢化合物变化。
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-21 DOI: 10.1007/s00128-025-04040-x
Flor Arcega-Cabrera, José Andrés Martínez-Trejo, Elsa Noreña-Barroso, Gabriela Rodríguez-Fuentes, Ismael Oceguera-Vargas
{"title":"Two-Year Hydrocarbon Variations in Sediments of the Ring of Cenotes, Yucatan, Mexico.","authors":"Flor Arcega-Cabrera, José Andrés Martínez-Trejo, Elsa Noreña-Barroso, Gabriela Rodríguez-Fuentes, Ismael Oceguera-Vargas","doi":"10.1007/s00128-025-04040-x","DOIUrl":"10.1007/s00128-025-04040-x","url":null,"abstract":"<p><p>Pollutant input to groundwater could result in karstic aquifers water quality degradation. In the karstic aquifer of Yucatan several anthropogenic activities take place without water sanitation or waste management, thus, these activities could be a source of contaminants to sinkholes (locally known as \"cenotes\"), which are the most relevant features in the karstic platform. In this context, this study monitored total n-alkanes (TAL) and polycyclic aromatic hydrocarbons (PAHs) in sediments of sinkholes at the ring of cenotes in Yucatan over a two year full hydrologic cycle (rainy-dry-rainy-dry seasons). Total PAHs measured in this study ranged from 1.7 to 1450 ng/g, and from 0.01 to 7520.8 ng/g for TAL. Spatially significant variations were only found between the eastern and central zones in dry season, probably as result of the environmental and hydrological changes. Main probable origin of hydrocarbons was found to be pyrogenic, resulting from local customs such as constant garbage burning and seasonal farmfields burning. Although PAHs did not show concentrations of concern yet, current socioeconomic development and no water sanitation envisages future threats to the karstic aquifer water quality for human supply.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 5","pages":"66"},"PeriodicalIF":2.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12011947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143960193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phytoremediation of Lead-Contaminated Soils Using Indian Mustard: Influence of Organic and Inorganic Amendments. 利用芥菜修复铅污染土壤:有机和无机改良剂的影响。
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-12 DOI: 10.1007/s00128-025-04042-9
Rajeev Sikka, Arshdeep Kalsi, Paawan Kaur
{"title":"Phytoremediation of Lead-Contaminated Soils Using Indian Mustard: Influence of Organic and Inorganic Amendments.","authors":"Rajeev Sikka, Arshdeep Kalsi, Paawan Kaur","doi":"10.1007/s00128-025-04042-9","DOIUrl":"https://doi.org/10.1007/s00128-025-04042-9","url":null,"abstract":"<p><p>Lead (Pb) contamination in the environment poses significant risks to ecosystems and human health. Effective management strategies are crucial for mitigating its impact. This study investigated the immobilization and bioavailability of Pb in soils, amended with press-mud, farmyard manure (FYM), lime and silt + clay, with Indian mustard (Brassica juncea L.). Loamy sand soil was spiked with lead nitrate at concentrations of 0, 50, 100, 200 and 400 mg kg<sup>- 1</sup> Pb. Indian mustard (RLM 619) was raised in treated microcosms upto maturity with adequate application of NPK fertilizers. The total mean dry matter yield of Indian mustard harvested at maturity decreased with increasing Pb levels. At all Pb levels, the application of different amendments, except lime, increased micronutrient content. Addition of amendments generally enhanced the nutrient content in seeds. We concluded that the silt + clay amendment was the most effective in reducing Pb bioavailability to Indian mustard. Future research should explore the long-term effects of amendments on the sustainability of Pb immobilization across various soil types. Additionally, assessing Indian mustard for large-scale remediation will provide valuable insights for developing more effective and eco-friendly management strategies.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"63"},"PeriodicalIF":2.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In Situ Assessment of Potentially Toxic Elements (PETs) in Different Tissues of Leopard Frogs (Lithobates berlandieri) Residing Near a Mining Site in Charcas, San Luis Potosi, Mexico. 墨西哥圣路易斯波托西查卡斯矿区附近豹蛙(Lithobates berlanddieri)不同组织中潜在有毒元素(pet)的原位评估
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-12 DOI: 10.1007/s00128-025-04039-4
José Miguel Mora-Humara, Donají J González-Mille, Guillermo Espinosa-Reyes, Mario A Burgos-Aceves, Arturo Torres-Dosal, Israel Razo-Soto, César A Ilizaliturri-Hernández
{"title":"In Situ Assessment of Potentially Toxic Elements (PETs) in Different Tissues of Leopard Frogs (Lithobates berlandieri) Residing Near a Mining Site in Charcas, San Luis Potosi, Mexico.","authors":"José Miguel Mora-Humara, Donají J González-Mille, Guillermo Espinosa-Reyes, Mario A Burgos-Aceves, Arturo Torres-Dosal, Israel Razo-Soto, César A Ilizaliturri-Hernández","doi":"10.1007/s00128-025-04039-4","DOIUrl":"https://doi.org/10.1007/s00128-025-04039-4","url":null,"abstract":"<p><p>Mining generates large volumes of waste, which, if not regulated, can release toxic metals, causing widespread environmental contamination. This study focused on heavy metal contamination in sediments and amphibians within a mining area at Charcas, San Luis Potosi, Mexico. The results revealed that the Lithobates berlandieri individuals inhabiting an area polluted with industrial waste, high levels of heavy metals and metalloids (As, Cd, Cr, Cu, Hg and Pb) were found in sediments and tissues compared to samples from a reference site. Furthermore, the levels of all metals and metalloids in these frogs were higher in the kidney, liver, and skin. Additionally, it can contribute to the proposed use of non-lethal biomarkers (e.g. skin) for medium and long-term monitoring and regulation at these sites.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"64"},"PeriodicalIF":2.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Manganese Uptake and Lethality in the Sea Star Asterias rubens: Effect of Hypoxia. 锰在海星中的吸收和致死:缺氧的影响。
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-12 DOI: 10.1007/s00128-025-04037-6
Poul Bjerregaard, Søren Nordahl Hansen
{"title":"Manganese Uptake and Lethality in the Sea Star Asterias rubens: Effect of Hypoxia.","authors":"Poul Bjerregaard, Søren Nordahl Hansen","doi":"10.1007/s00128-025-04037-6","DOIUrl":"https://doi.org/10.1007/s00128-025-04037-6","url":null,"abstract":"<p><p>Oxygen depletion due to eutrophication in marine waters has been an increasing problem worldwide and during oxygen depletion events, benthic organisms may concurrently be exposed to hypoxia and manganese leaching from reduced sediments. In this investigation the uptake and toxic effects of manganese under normoxia and hypoxia were studied in the sea star Asterias rubens. Exposure to 1 mg Mn L<sup>-1</sup> for 4 weeks resulted in increased manganese concentrations in tube feet and pyloric caeca, whereas the concentrations in the aboral body wall showed no statistically significant changes. Manganese concentrations and accumulation did not differ between hypoxia (25% oxygen saturation) and normoxia; mortality was not observed in either of these exposure scenarios. Exposure to 0, 25, 35 and 50 mg Mn L<sup>-1</sup> resulted in a time and concentration dependent increase in mortality over 7 d, aggravated by hypoxic conditions. Hypoxic conditions significantly reduced average survival time at exposure to 50 mg Mn L<sup>-1</sup>.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"65"},"PeriodicalIF":2.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11993448/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Organic Sources on Microbial Population and Enzymatic Activities Under Salt Degraded Soil Condition. 盐退化土壤条件下有机源对微生物种群及酶活性的影响
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-11 DOI: 10.1007/s00128-025-04041-w
M L Dotaniya, M D Meena, R L Choudhary, M K Meena, V D Meena, H V Singh, R S Jat, N R Bhardwaj, P K Rai
{"title":"Effect of Organic Sources on Microbial Population and Enzymatic Activities Under Salt Degraded Soil Condition.","authors":"M L Dotaniya, M D Meena, R L Choudhary, M K Meena, V D Meena, H V Singh, R S Jat, N R Bhardwaj, P K Rai","doi":"10.1007/s00128-025-04041-w","DOIUrl":"https://doi.org/10.1007/s00128-025-04041-w","url":null,"abstract":"<p><p>Excessive salt in soil limits the availability of plant nutrients during crop growth period. Addition of organic sources may reduce the intensity of salt by acting as the absorption mechanism during mineralization. In this, hypothesis, a field experiment was conducted with nine organic (farm yard manure-FYM, pressmud-PM, vermicompost-VC) treatments combinations (T<sub>1</sub>-control, T<sub>2</sub>-RDF, T<sub>3</sub>-RDF + FYM 10 t/ha, T<sub>4</sub>-RDF + FYM 2.5 t/ha + PM 2.5 t/ha, T<sub>5</sub>-RDF + FYM 5 t/ha + PM 5 t/ha, T<sub>6</sub>-RDF + PM 2.5 t/ha + VC 2.5 t/ha, T<sub>7</sub>-RDF + PM 5 t/ha + VC 5 t/ha, T<sub>8</sub>-RDF + FYM 1.25 t/ha + PM 2.5 t/ha + VC 1.25 t/ha, T<sub>9</sub>-RDF + FYM 2.5 t/ha + PM 5 t/ha + VC 2.5 t/ha). Mustard crop was raised with recommended packages and practices in saline soil. Rhizospheric samples were collected and analyzed for soil microbial population (bacteria, fungi and actinomycetes) and enzymatic activities (alkaline phosphatase, dehydrogenase activity-DHA, aryl sulphates). Analytical result showed that addition of 10 t/ha by the combination of FYM (2.5 t/ha), PM (5 t/ha) and VC (2.5 t/ha) measured highest population 148.4 × 10<sup>3</sup> CFU/g, 15.3 × 10<sup>3</sup>, 28.01 × 10<sup>3</sup> of bacterial, fungi and actinomycetes, respectively. Similarly, soil enzymatic activities alkaline phosphatase (210.7 µg PNP /g soil/h), DHA (92.7 µg TPF/g soil/h) and aryl sulphatase (54.4 µg PNP /g soil/h) were also found highest in T9 treatment (RDF + FYM 2.5 t/ha + PM 5 t/ha + VC 2.5 t/ha). In this experiment the type of organic source and application levels were directly influenced by the microbial population and enzymatic activities in soil. This study is very useful for improving the microbial population and plant nutrient availability under saline soils for improving mustard crop yield.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"62"},"PeriodicalIF":2.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Different Concentrations of Nanoencapsulated Geraniol Induce Lethargy and Acetylcholinesterase Activity in Aquarana catesbeiana Tadpoles. 不同浓度香叶醇纳米胶囊对中华水藻蝌蚪嗜睡及乙酰胆碱酯酶活性的影响。
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-05 DOI: 10.1007/s00128-025-04035-8
Willian de Paula Santos, Caroline Santos, Letícia Paduan Tavares, Jhones Luís de Oliveira, Leonardo Fernandes Fraceto, Claudia Bueno Dos Reis Martinez
{"title":"Different Concentrations of Nanoencapsulated Geraniol Induce Lethargy and Acetylcholinesterase Activity in Aquarana catesbeiana Tadpoles.","authors":"Willian de Paula Santos, Caroline Santos, Letícia Paduan Tavares, Jhones Luís de Oliveira, Leonardo Fernandes Fraceto, Claudia Bueno Dos Reis Martinez","doi":"10.1007/s00128-025-04035-8","DOIUrl":"10.1007/s00128-025-04035-8","url":null,"abstract":"<p><p>Nanoencapsulated geraniol (nGER) may be a promising alternative to currently used synthetic pesticides, as it combines the pesticidal effects of geraniol with the protection against environmental degradation provided by zein nanocapsules. Anurans are non-target organisms that are highly harmed by the effects of pesticides; however, studies investigating the effects caused by alternatives to pesticides in amphibians are scarce. Thus, this study aimed to evaluate the toxicity of nGER through behavioral analyses and muscle acetylcholinesterase (AChE) activity in Aquarana catesbeiana tadpoles exposed to different concentrations of nGER (1, 5, 10, and 20 mg L<sup>-1</sup>). Characterization of the nanoparticles in the aquarium water over the exposure time (96 h) revealed similar sizes among the different groups. However, the concentration of particles in the higher concentrations (10 and 20 mg L<sup>-1</sup>) decreased, indicating a process of aggregation and precipitation. The results of the biomarkers showed that these higher nGER concentrations induce lethargy in animals within 96 h of exposure. Though, induction of muscle AChE was only observed in animals exposed to 5 mg L<sup>-1</sup>. Thus, the neuro-depressive effect of nGER appears to be unrelated to AChE activity in bullfrog tadpoles. Therefore, the hypothesis of this study was partially accepted since higher concentrations of nGER significantly altered the behavior of A. catesbeiana. However, this was not related to changes in AChE. As this is the first investigation into nGER toxicity in amphibians, the findings emphasize the importance of evaluating non-target organisms before considering alternative pesticides as sustainable.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 4","pages":"60"},"PeriodicalIF":2.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioaccumulation of Silver Nanoparticles (AgNPs) Co-Exposed with Graphene Oxide Nanosheets (GNs) in the Gill and Intestine Tissues of Guppy (Poecilia reticulata). 银纳米粒子(AgNPs)与氧化石墨烯纳米片(GNs)共同暴露在孔雀鱼(Poecilia reticulata)的鳃和肠组织中的生物积累。
IF 2.7 4区 环境科学与生态学
Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-04-05 DOI: 10.1007/s00128-025-04020-1
Naseh Babakhani, Soheil Sobhanardakani, Borhan Mansouri, Mehrdad Cheraghi, Bahareh Lorestani
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